| 21. | It is speculated that the hypothesized Pantasma Impact Crater in northern Nicaragua might be the source of these tektites.
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| 22. | These are possibly tektite deposits, formed as molten material ejected by a meteorite impact fell back to Earth.
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| 23. | Molten terrestrial material ejected from a meteorite impact crater can cool and solidify into an object known as a tektite.
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| 24. | From the 1950s through the 1990s, NASA aerodynamicist Dean Chapman and others advanced the lunar origin theory of tektites.
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| 25. | Third, tektites contain virtually no water ( < 0.02 wt % ), unlike terrestrial volcanic glasses.
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| 26. | Recognized types of tektites, grouped according to their known strewn fields, their associated craters, and ages are:
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| 27. | He suggested that explosive, hydrogen-driven lunar volcanoes may be the mechanism that launched the tektites to Earth.
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| 28. | Then on Feb . 14, lunchtime, the Universe Cybercafe at Tektite Building will be the venue for the Eyeball.
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| 29. | Evidence for the impact origin of the crater includes shocked quartz, a gravity anomaly, and tektites in surrounding areas.
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| 30. | The impact has been identified as the source of the North American tektite field, namely the Georgiaite and Bediasite fields.
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